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Zirconocene complexes with cyclopenta[l]phenanthrene ligands : syntheses, structural dynamics, and properties as olefin polymerization catalysts

Zirconocene complexes with cyclopenta[l]phenanthrene ligands : syntheses, structural dynamics, and properties as olefin polymerization catalysts

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SCHNEIDER, Nicole, Frank SCHAPER, Katrin SCHMIDT, Robin KIRSTEN, Armin GEYER, Hans-Herbert BRINTZINGER, 2000. Zirconocene complexes with cyclopenta[l]phenanthrene ligands : syntheses, structural dynamics, and properties as olefin polymerization catalysts. In: Organometallics. 19(18), pp. 3597-3604. ISSN 0276-7333. eISSN 1520-6041. Available under: doi: 10.1021/om000149j

@article{Schneider2000Zirco-23735, title={Zirconocene complexes with cyclopenta[l]phenanthrene ligands : syntheses, structural dynamics, and properties as olefin polymerization catalysts}, year={2000}, doi={10.1021/om000149j}, number={18}, volume={19}, issn={0276-7333}, journal={Organometallics}, pages={3597--3604}, author={Schneider, Nicole and Schaper, Frank and Schmidt, Katrin and Kirsten, Robin and Geyer, Armin and Brintzinger, Hans-Herbert} }

Brintzinger, Hans-Herbert eng Organometallics ; 19 (2000), 18. - S. 3597-3604 Schneider, Nicole Schaper, Frank Geyer, Armin Kirsten, Robin deposit-license Brintzinger, Hans-Herbert (2-Methylcyclopenta[l]phenanthryl)<sub>2</sub>ZrCl<sub>2</sub> and (2-phenylcyclopenta[l]phenanthryl)<sub>2</sub>ZrCl<sub>2</sub> were synthesized and used, after activation with MAO, as catalysts for the polymerization of propene. The resulting polymers had low isotacticities (8−18% [mmmm]). Ligand rotation barriers for the corresponding Zr−dibenzyl derivatives were determined by dynamic NMR spectroscopy. Pathways and transition states for ligand rotation in this series of complexes were studied by molecular-mechanics calculations and are discussed in relation to the microstructure of the respective polymer products. Kirsten, Robin Schneider, Nicole Zirconocene complexes with cyclopenta[l]phenanthrene ligands : syntheses, structural dynamics, and properties as olefin polymerization catalysts Schmidt, Katrin 2013-06-24T17:05:15Z Schaper, Frank 2013-06-24T17:05:15Z Schmidt, Katrin Geyer, Armin 2000

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